package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApCollectionBehaviorService;
import com.heima.common.constants.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.CollectionBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApCollection;
import com.heima.model.behavior.pojos.ApUnlikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApCollectionBehaviorServiceImpl implements ApCollectionBehaviorService {

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult collectBehavior(CollectionBehaviorDTO dto) {
        //校验参数 需要登录 文章id不能null  操作类型 0 或 1
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            CustException.cust(AppHttpCodeEnum.NEED_LOGIN, "用户需要登录！");
        }
        //根据userId查询行为实体数据
        ApBehaviorEntry behaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        if (behaviorEntry == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID, "查询行为实体对象为空");
        }
        //如果是收藏操作 判断是否已经收藏
        Short operation = dto.getOperation();
        if (operation == 0) {
            ApCollection apCollection = mongoTemplate.findOne(
                    Query.query(Criteria.where("entryId")
                            .is(behaviorEntry.getId())
                            .and("articleId")
                            .is(dto.getArticleId())), ApCollection.class);
            if (apCollection != null) {
                CustException.cust(AppHttpCodeEnum.DATA_EXIST, "此文章已经被您收藏过了！");
            }
            //如果未收藏 新增收藏行为
            apCollection = new ApCollection();
            apCollection.setEntryId(apCollection.getId());
            apCollection.setArticleId(dto.getArticleId());
            apCollection.setCreatedTime(new Date());
            mongoTemplate.insert(apCollection);
        } else {
            //如果是取消收藏操作  删除收藏行为
            mongoTemplate.remove(
                    Query.query(Criteria.where("entryId")
                            .is(behaviorEntry.getId())
                            .and("articleId")
                            .is(dto.getArticleId())), ApCollection.class);
        }
        //发送收藏行为消息，用于文章行为汇总数量，更改文章热度
        NewBehaviorDTO newBehaviorDTO = new NewBehaviorDTO();
        newBehaviorDTO.setType(NewBehaviorDTO.BehaviorType.COLLECTION);
        newBehaviorDTO.setArticleId(dto.getArticleId());
        newBehaviorDTO.setAdd(dto.getOperation().intValue()==0?1:-1);
        rabbitTemplate.convertAndSend(
                HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE,
                JSON.toJSONString(newBehaviorDTO)
        );
        log.info("成功发送 收藏行为 消息内容：{}",newBehaviorDTO);
        return ResponseResult.okResult();
    }
}
